Bottle cap



FIG. 1 is a perspective view of a bottle cap;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof; and,

FIG. 6 is a top plan view thereof.

Broken lines in the drawings indicate environmental structure that form no part of the claimed design. 

CLAIM The ornamental design for a bottle cap, as shown and described. 